Rotary polishing-brush.



A. L. RADLEIN & G. SELANDER.

ROTARY POLISHING BRUSH.

APPLICATION FILED IuNE I1. 1914.

' 1 1 11% Patented June 1, 1915.

ALBERT L. RADLEIN AND GUSTAF SELANDER, 0F CLZICAGO, ILLINOIS.

ROTARY PLISHING-BRUSH.

Specification of Letters Patent.

Patented Jl une 1, 1915.

Application le .Tune 17, 1914.. Serial N o. 845,534.

the metal polishing trade in which the polishing portion is formed by adisk like pad of woven fabric mounted on a central carrying hub. And thepresent improvement has for its object to provide a simple and efficientstructural arrangement and combination of a series of woven fabric`disks whereby the required diameter Afor effective'polishing action isattained with a series of smaller disks, and by means of which theordinary polishing disks when worn down to an ineflicient size forpractical use in the ordinary way can be utilized for further andeffective work, all as will hereinafter more fully appear.

In the accompanying drawing: Figure l, is a section on line .fr-w, Fig.2, of a polishing wheel or brush embodying the present invention. Fig.2, is an elevation of the same.

Similar reference numerals indicate like parts in both views.

Referring to the drawgigs, 1 and 2, represent a pair of companion hubsections or members disposed in spaced relation to each other and formedwith central orices adapted to fit a power driven carrying arbor and beheld thereby in proper longitudinal alinement, as well as driven by thesame.

3 represents a circular cluster of intermediate studs or pins extendingbetween` the spaced hub sections 1, 2, aforesaid. Said carrying studs 3are preferably attached at one end in any usual and-suitable manner inone of the aforesaid hub sections, with their opposite ends adapted toengage in recesses formed therefor in the other hub section, asillustrated in Fig. 1.

4 represent a plurality of disks of woven fabric, such for instance aswhat is known to the trade as cotton duck, and which are of a smalldiameter as compared to that of the disks ordinarily used and requiredin metal polishing operations. As usual in the present type of polishingwheels or brushes, the disks 4 will be built up to the requiredthickness of layers ofwoven fabric stitched together as shown. In thepresentinvention the woven fabric disks 4, are eccentrically mounted onthe hub sections 1, 2, by orifices near their margins. Such orifices inturn have holding engagement with the circular series of holding studsor pins 3, above described, and the construction is such that' a seriesof the woven fabric disks 4, will form a circular cluster around thecentral carrying hub sections l, 2, as illustrated in Fig. 2. Therequired width of thepolishing face or perimeter of the present wheel orbrush, is attained by placing side bi' side the required number of theabove described circular cluster of woven fabric disks el, and in thepreferred form of the present invention, each alternate cluster of wovenfabric disks i, will have a staggered relation to the neXt adjacentcluster, with a view to attain an approximately continuous perimeter inthe completed article.

5 is a laterally extending sleeve on the hub section or member 1, andadapted to house the projecting ends of the studs or pins 3, and preventinjury to the operator in actual use.

Having thus fully described our said invention what we claim as new anddesire to secure by Letters Patent, is

1. A rotary polishing brush comprising, a central hub member, a clusterof woven fabric disks associated with said hub member, and a seriesA ofholding-studs carried by said hub member with a plurality of saidholding studs passing through eccentrically located orifices -in eachdisk of the cluster, substantially as set forth. f

2. A carrying hub for rotary polishing brushes of the class described,the same comprising a pair of hub sections associated in spacedrelation, a cluster of intermediate studs secured at one .end to one ofsaid hub sections and passing loosely through orifices Signed atChicago, Illinois, this 13th day formed therefor in the other hubsection, of June, 1914.

and a laterally extending sleeve associated v ALBERT L. RADLEIN.

with the last mentioned hub section and. GUSTAF SELANDER. 5 adapted tohouse the laterally projecting Witnesses: l

lends of the aforesaid studs, substantially as ROBERT BURNS,

set forth. IVA L. CRANE.

